A multi-layer filtration infiltration device for soil remediation

Abstract

The utility model discloses a multilayer filtering infiltration device for soil remediation relates to soil remediation technical field, including the outer box, the filter assembly is arranged in the outer box one side, and the infiltration assembly is arranged in the outer box one side, the infiltration assembly includes the gear box, and one side of gear box is fixedly connected with the one side of outer box, and the inside of gear box is provided with the toothed belt, and the inside of toothed belt is engaged with the internal thread gear and drive gear, and the internal thread gear and drive gear are engaged with each other and are located in the inside of gear box, and the lower extreme of drive gear is provided with the rotating electrical machine and is driven through rotating electrical machine, the utility model discloses the thread pipe and liquid outlet hole that can be in -depth soil interior through the design, has effectively changed the traditional ground sprinkling mode, has realized the accurate, even injection of repair liquid on the longitudinal profile of soil, has effectively avoided the phenomenon of the blind area of repair and advantage flow that leads to soil heterogeneity.

Description

Technical Field

[0001] This utility model relates to the field of soil remediation technology, specifically a multi-layer filtration and infiltration device for soil remediation. Background Technology

[0002] Remediation of soil contaminated with heavy metals is a major challenge facing the field of environmental protection. Traditional remediation technologies, such as chemical leaching, usually involve deploying spray devices on the ground to evenly spray the remediation solution onto the surface of the contaminated soil. The solution then slowly penetrates downwards under its own weight, reacting with heavy metals through dissolution, complexation, and displacement. The heavy metal-rich liquid is then recovered and treated through filtration or extraction.

[0003] However, this surface spraying infiltration mode has significant drawbacks: First, during the top-down infiltration process, the remediation solution is easily affected by factors such as soil texture, porosity, and capillary action. The remediation solution preferentially selects the path with the least resistance for rapid infiltration, while other areas are infiltrated slowly or are difficult to reach, resulting in uneven internal soil reaction, numerous remediation blind spots, and low efficiency. Second, the remediation solution may suffer ineffective losses during the long infiltration process, such as surface volatilization or large-scale adsorption by uncontaminated upper soil layers, reducing the proportion of effective components that actually reach deep contaminated areas, leading to low agent utilization and increased costs. Third, the entire remediation process is time-consuming, making it difficult to effectively intervene in and enhance the distribution and reaction of the remediation solution on the profile, seriously affecting the efficiency and effectiveness of engineering remediation. Based on this, a multi-layer filtration infiltration device for soil remediation is now provided, which can eliminate the drawbacks of existing devices. Utility Model Content

[0004] The purpose of this invention is to provide a multi-layer filtration and infiltration device for soil remediation, in order to solve the problems in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: A multi-layer filtration and infiltration device for soil remediation includes an outer casing, a filtration assembly disposed on one side of the outer casing, and an infiltration assembly disposed on one side of the outer casing. The permeation assembly includes a gearbox, one side of which is fixedly connected to the outer casing. A toothed belt is provided inside the gearbox, and an internal threaded gear and a drive gear mesh on the inner side of the toothed belt. The internal threaded gear and the drive gear mesh with each other and are limited within the gearbox. A rotary motor is provided at the lower end of the drive gear and is driven by the rotary motor. An internal thread is provided in the middle of the internal threaded gear and is threadedly connected to a threaded tube. The threaded tube is hollow inside and has several liquid outlet holes arrayed on both sides. A top plate is fixedly connected to the upper end of the liquid outlet holes, and a limit component is provided on one side of the threaded tube.

[0006] Based on the above technical solutions, this utility model also provides the following optional technical solutions: In one alternative: the limiting component includes a limiting plate, one side of which is fixedly connected to the side adjacent to the outer casing, a sliding groove is provided on the side of the limiting plate adjacent to the threaded pipe, and a limiting block is fixedly connected to the upper end of the top plate near the limiting plate.

[0007] In one alternative: the limiting block is slidably connected to the slide groove.

[0008] In one alternative embodiment: the filtration assembly includes a basket filter, which is disposed on the upper side of the outer casing. A waste liquid inlet pipe is fixedly connected to the input end of the basket filter, and one end of the waste liquid inlet pipe extends through the outer side of the outer casing. A cartridge filter is disposed below the basket filter, and its output end is fixedly connected to the input end of the cartridge filter. A water tank is disposed below the cartridge filter, and its output end is fixedly connected to the water tank.

[0009] In one alternative: a water pump is installed inside the water tank and a telescopic pipe is fixedly connected to its output end. One end of the telescopic pipe passes through the water tank and the outer casing and is fixedly connected to the upper end of a threaded pipe.

[0010] In one alternative: the basket filter is a BL-50-200 basket filter, and the cartridge filter is an FH-740-10-20 cartridge filter.

[0011] In one alternative: several feet are fixedly connected around the lower surface of the outer casing, and heat dissipation holes are provided on both sides of the outer casing.

[0012] In one alternative: a controller is fixedly connected to one side of the upper end of the outer casing, and the controller is electrically connected to the filter assembly, the water pump and the permeation assembly respectively.

[0013] Compared with the prior art, the beneficial effects of this utility model are as follows: This invention effectively changes the traditional surface spraying mode by designing a threaded tube that can penetrate deep into the soil and an outlet hole. It achieves precise and uniform injection of remediation fluid in the longitudinal direction of the soil profile, effectively avoiding remediation blind spots and dominant flow phenomena caused by soil heterogeneity, and greatly improving remediation efficiency and uniformity. At the same time, through the innovative mechanical structure of gear meshing transmission and threaded pair combination, and with the sliding connection of limit block and slide groove, it realizes stable and controllable automatic lifting and lowering movement of threaded tube. The high degree of mechanization reduces manual operation and improves the reliability of the device and the level of automation in engineering applications. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the overall structure of this utility model.

[0015] Figure 2 This is an exploded view of the overall structure of this utility model.

[0016] Figure 3 This is a schematic diagram of the permeation component structure of this utility model.

[0017] Figure 4 This is an exploded view of the permeation component structure of this utility model.

[0018] Figure label annotations: 1. Outer casing; 2. Controller; 3. Base; 4. Heat dissipation hole; 5. Basket filter; 6. Cartridge filter; 7. Water tank; 8. Telescopic pipe; 9. Waste liquid inlet pipe; 10. Limiting plate; 11. Top plate; 12. Threaded pipe; 13. Gearbox; 14. Liquid outlet; 15. Slide groove; 16. Rotary motor; 17. Toothed belt; 18. Internal threaded gear; 19. Limiting block; 20. Drive gear. Detailed Implementation

[0019] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments.

[0020] In one embodiment, such as Figures 1-4 As shown, a multi-layer filtration and infiltration device for soil remediation includes an outer casing 1, a filtration assembly is provided on one side of the outer casing 1, and an infiltration assembly is provided on one side of the outer casing 1. The permeation assembly includes a gearbox 13, one side of which is fixedly connected to one side of the outer casing 1. A toothed belt 17 is provided inside the gearbox 13, and an internally threaded gear 18 and a drive gear 20 mesh on the inner side of the toothed belt 17. The internally threaded gear 18 and the drive gear 20 are mutually meshed and limited within the gearbox 13. A rotary motor 16 is provided at the lower end of the drive gear 20, and the drive gear 20 is driven by the rotary motor 16. The internally threaded gear 18 has an internal thread in its middle and is threadedly connected to a threaded tube 12. The tube 12 is hollow inside and has several liquid outlet holes 14 arrayed on both sides. The upper end of each liquid outlet hole 14 is fixedly connected to a top plate 11. A limit component is provided on one side of the threaded tube 12. The internal threaded gear 18 has limit grooves on both sides and is slidably connected to the gearbox 13 through the limit grooves. Both the threaded tube 12 and the internal threaded gear 18 are carbon steel threaded rods with a zinc-iron alloy coating on the outside. A cleaning brush is provided directly below the gearbox 13 to clean the surface of the threaded tube 12 when it rises. In this embodiment, the filtration assembly performs multi-layer filtration and purification on the recovered waste remediation fluid. The purified remediation fluid is pumped into the hollow threaded tube 12 through a water pump and a telescopic tube 8. At the same time, the rotary motor 16 starts and drives the drive gear 20 connected to it to rotate. This gear meshes with the internal threaded gear 18, causing it to rotate synchronously. The inner hole of the internal threaded gear 18 is threaded, forming a screw-nut pair with the threaded tube 12. Therefore, when the internal threaded gear 18 rotates, it forces the threaded tube 12 to produce a vertical linear motion, driving it into or out of the soil. The remediation fluid is then released directly and uniformly at different depths in the soil through the outlet holes 14 arrayed on the side wall of the threaded tube 12, thereby achieving precise deep penetration remediation. The limiting component is used to prevent the threaded tube 12 from rotating with the internal threaded gear 18, ensuring that it only makes vertical movements.

[0021] In one embodiment, such as Figure 4 As shown, the limiting component includes a limiting plate 10. One side of the limiting plate 10 is fixedly connected to the side adjacent to the outer casing 1. A groove 15 is provided on the side of the limiting plate 10 adjacent to the threaded tube 12. A limiting block 19 is fixedly connected to the upper end of the top plate 11 near the limiting plate 10. The limiting component cooperates with the limiting block 19 fixed on the top plate 11 through the groove 15 on the limiting plate 10. When the threaded tube 12 moves up and down under the drive of the gear 18, the limiting block 19 is constrained to slide within the groove 15, thereby effectively preventing the threaded tube 12 from rotating circumferentially and ensuring the straightness and stability of its movement trajectory.

[0022] In one embodiment, such as Figure 4 As shown, the limiting block 19 is slidably connected to the slide groove 15.

[0023] In one embodiment, such as Figure 2 As shown, the filtration assembly includes a basket filter 5, which is located on the upper side of the outer casing 1. A waste liquid inlet pipe 9 is fixedly connected to the inlet end of the basket filter 5, and one end of the waste liquid inlet pipe 9 extends through the outer side of the outer casing 1. A cartridge filter 6 is located below the basket filter 5, with its output end fixedly connected to the inlet end of the cartridge filter 6. A water tank 7 is located below the cartridge filter 6, with its output end fixedly connected to the water tank 7. The waste remediation solution, rich in heavy metals, first enters the basket filter 5 through the waste liquid inlet pipe 9. In this step, larger soil particles, gravel, and plant roots are effectively intercepted. The pre-filtered liquid flows into the cartridge filter 6 below, where the PP cotton or wound filter element removes fine suspended particles and colloids, clarifying the liquid. Finally, the purified remediation solution is collected in the water tank 7 for recycling.

[0024] In one embodiment, such as Figure 2As shown, a water pump is installed inside the water tank 7 and a telescopic pipe 8 is fixedly connected to the output end. One end of the telescopic pipe 8 passes through the water tank 7 and the outer box 1 and is fixedly connected to the upper end of the threaded pipe 12. After the water pump inside the water tank 7 is started, it pumps out the purified repair fluid in the tank and delivers it to the continuously moving threaded pipe 12 through the telescopic pipe 8. The characteristics of the telescopic pipe 8 enable it to adapt to the stroke changes of the threaded pipe 12 moving up and down, ensuring the continuity and reliability of the fluid delivery.

[0025] In one embodiment, such as Figure 2 As shown, the basket filter 5 is a BL-50-200 basket filter, and the cartridge filter 6 is an FH-740-10-20 cartridge filter.

[0026] In one embodiment, such as Figure 1 As shown, several feet 3 are fixedly connected around the lower surface of the outer casing 1, and heat dissipation holes 4 are provided on both sides of the outer casing 1 to prevent the internal temperature of the outer casing 1 from being too high and affecting its use.

[0027] In one embodiment, such as Figure 1 As shown, a controller 2 is fixedly connected to one side of the upper end of the outer casing 1. The controller 2 is electrically connected to the filter assembly, water pump and infiltration assembly respectively, and the entire device is controlled by the controller 2.

[0028] The above embodiment discloses a multi-layer filtration and infiltration device for soil remediation. The filtration assembly performs multi-layer filtration and purification on the recovered waste remediation solution. The waste remediation solution, rich in heavy metals, first enters the basket filter 5 through the waste liquid inlet pipe 9. In this step, larger soil particles, gravel, and plant roots are effectively intercepted. The pre-filtered liquid flows into the lower cartridge filter 6, where the PP cotton or wound filter element removes fine suspended particles and colloids, clarifying the liquid. Finally, the purified remediation solution is collected in a water tank 7 for recycling. The purified remediation solution is then pumped into the hollow threaded tube 12 through a water pump and a telescopic pipe 8. Simultaneously, a rotary motor 16 starts, driving a connected drive gear 20 to rotate. This gear meshes with an internal threaded gear 18, causing it to rotate synchronously. The internal threaded gear 18 has threads in its inner hole, forming a screw-nut pair with the threaded tube 12. Therefore, when the internal threaded gear 18 rotates, it forces the threaded tube 12... 2. A vertical linear motion is generated, driving the threaded tube 12 into or out of the soil. The remediation fluid is released directly and evenly at different soil depths through the outlet holes 14 arrayed on the sidewall of the threaded tube 12, thereby achieving precise deep penetration remediation. The limiting component is used to prevent the threaded tube 12 from rotating with the internal threaded gear 18, ensuring that it only makes vertical movements. The limiting component cooperates with the limiting block 19 fixed on the top plate 11 through the sliding groove 15 opened on the limiting plate 10. When the threaded tube 12 moves up and down under the drive of the gear 18, the limiting block 19 is constrained to slide within the sliding groove 15, thereby effectively preventing the threaded tube 12 from rotating circumferentially, ensuring the linearity and stability of its movement trajectory, driving the threaded tube 12 into or out of the soil. The remediation fluid is released directly and evenly at different soil depths through the outlet holes 14 arrayed on the sidewall of the threaded tube 12, thereby achieving precise deep penetration remediation. The limiting component is used to prevent the threaded tube 12 from rotating with the gear, ensuring that it only makes vertical movements.

[0029] The above description is merely a specific embodiment of this application, but the scope of protection of this application is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the technical scope disclosed in this application should be included within the scope of protection of this application. Therefore, the scope of protection of this application should be determined by the scope of the claims.

Claims

1. A multi-layer filtration and infiltration device for soil remediation, comprising an outer casing (1), wherein a filtration assembly is disposed on one side of the outer casing (1), and an infiltration assembly is disposed on one side of the outer casing (1); Its features are, The permeation assembly includes a gearbox (13), one side of which is fixedly connected to one side of the outer casing (1). A toothed belt (17) is provided inside the gearbox (13). An internal threaded gear (18) and a drive gear (20) are meshed inside the toothed belt (17). The internal threaded gear (18) and the drive gear (20) mesh with each other and are limited inside the gearbox (13). A rotary motor (16) is provided at the lower end of the drive gear (20) and is driven by the rotary motor (16). An internal thread is provided in the middle of the internal threaded gear (18) and is threadedly connected to a threaded tube (12). The threaded tube (12) is hollow inside and has several liquid outlet holes (14) arranged in an array on both sides. A top plate (11) is fixedly connected to the upper end of the liquid outlet hole (14). A limit component is provided on one side of the threaded tube (12).

2. The multi-layer filtration and infiltration device for soil remediation according to claim 1, characterized in that, The limiting component includes a limiting plate (10), one side of which is fixedly connected to the side adjacent to the outer box (1), and a groove (15) is provided on the side of the limiting plate (10) adjacent to the threaded pipe (12). A limiting block (19) is fixedly connected to the upper end of the top plate (11) near the limiting plate (10).

3. A multi-layer filtration and infiltration device for soil remediation according to claim 2, characterized in that, The limiting block (19) is slidably connected to the slide groove (15).

4. A multi-layer filtration and infiltration device for soil remediation according to claim 1, characterized in that, The filtration assembly includes a basket filter (5), which is located on the upper side of the outer casing (1). The input end of the basket filter (5) is fixedly connected to a waste liquid inlet pipe (9), and one end of the waste liquid inlet pipe (9) extends through the outer side of the outer casing (1). A cartridge filter (6) is located below the basket filter (5), and its output end is fixedly connected to the input end of the cartridge filter (6). A water tank (7) is located below the cartridge filter (6), and its output end is fixedly connected to the water tank (7).

5. A multi-layer filtration and infiltration device for soil remediation according to claim 4, characterized in that, The water tank (7) is equipped with a water pump and the output end is fixedly connected to a telescopic pipe (8). One end of the telescopic pipe (8) passes through the water tank (7) and the outer box (1) and is fixedly connected to the upper end of the threaded pipe (12).

6. A multi-layer filtration and infiltration device for soil remediation according to claim 4, characterized in that, The basket filter (5) is a BL-50-200 basket filter, and the cartridge filter (6) is an FH-740-10-20 cartridge filter.

7. A multi-layer filtration and infiltration device for soil remediation according to claim 1, characterized in that, The outer casing (1) has several feet (3) fixedly connected around its lower surface, and heat dissipation holes (4) are provided on both sides of the outer casing (1).

8. A multi-layer filtration and infiltration device for soil remediation according to claim 1, characterized in that, A controller (2) is fixedly connected to one side of the upper end of the outer casing (1). The controller (2) is electrically connected to the filter assembly, the water pump and the permeation assembly respectively.

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